Last modified by Mengting Qiu on 2024/04/02 16:54
<
From version < 33.2 >
edited by Xiaoling
on 2022/09/13 09:14
To version < 32.1 >
edited by David Huang
on 2022/09/08 09:49
>
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.David
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7 7  
8 8  
9 9  
10 -= 1.  Introduction =
10 += 1. Introduction =
11 11  
12 +== 1.1 ​What is NLMS01 Leaf Moisture Sensor ==
12 12  
13 -== 1.1 ​ What is NLMS01 Leaf Moisture Sensor ==
14 14  
15 +The Dragino NLMS01 is a **NB-IOT Leaf Moisture Sensor** for IoT of Agriculture. It is designed to measure the leaf moisture and temperature, so to send to the platform to analyze the leaf status such as : watering, moisturizing, dew, frozen. The probe is IP67 waterproof.
15 15  
16 -The Dragino NLMS01 is a (% style="color:blue" %)**NB-IOT Leaf Moisture Sensor**(%%) for IoT of Agriculture. It is designed to measure the leaf moisture and temperature, so to send to the platform to analyze the leaf status such as : watering, moisturizing, dew, frozen. The probe is IP67 waterproof.
17 +NLMS01 detects leaf's** moisture and temperature **use FDR method, it senses the dielectric constant cause by liquid over the leaf surface, and cover the value to leaf moisture. The probe is design in a leaf shape to best simulate the real leaf characterizes. The probe has as density as 15 leaf vein lines per centimeter which make it can senses small drop and more accuracy.
17 17  
18 -NLMS01 detects leaf's(% style="color:blue" %)** moisture and temperature use FDR method**(%%), it senses the dielectric constant cause by liquid over the leaf surface, and cover the value to leaf moisture. The probe is design in a leaf shape to best simulate the real leaf characterizes. The probe has as density as 15 leaf vein lines per centimeter which make it can senses small drop and more accuracy.
19 -
20 20  NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
21 -\\NLMS01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP  **(%%)for different application requirement.
22 -\\NLMS01 is powered by  (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method).
23 -\\To use NLMS01, user needs to check if there is NB-IoT coverage in local area and with the bands NLMS01 supports. If the local operate support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from local operator and install NLMS01 to get NB-IoT network connection.
20 +\\NLMS01 supports different uplink methods include **TCP,MQTT,UDP and CoAP  **for different application requirement.
21 +\\NLMS01 is powered by  **8500mAh Li-SOCI2 battery**, It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
22 +\\To use NLMS01, user needs to check if there is NB-IoT coverage in local area and with the bands NLMS01 supports. If the local operate support it, user needs to get a **NB-IoT SIM card** from local operator and install NLMS01 to get NB-IoT network connection
24 24  
25 -
26 26  ​[[image:image-20220907171221-2.png]]
27 27  
28 -
29 29  ​ [[image:image-20220907171221-3.png]]
30 30  
28 +== ​1.2 Features ==
31 31  
30 +* (((
31 +NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
32 +)))
33 +* (((
34 +Monitor Leaf moisture
35 +)))
32 32  
33 -== ​1.2  Features ==
37 +* (((
38 + Monitor Leaf temperature
39 +)))
34 34  
35 -
36 -* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
37 -* Monitor Leaf moisture
38 -* Monitor Leaf temperature
39 -* Moisture and Temperature alarm function
40 -* Monitor Battery Level
41 -* Uplink on periodically
42 -* Downlink to change configure
43 -* IP66 Waterproof Enclosure
44 -* IP67 rate for the Sensor Probe
45 -* Ultra-Low Power consumption
46 -* AT Commands to change parameters
47 -* Micro SIM card slot for NB-IoT SIM
48 -* 8500mAh Battery for long term use
49 -
50 -(((
51 -
52 -
53 -
54 -
41 +* (((
42 +Moisture and Temperature alarm function
55 55  )))
44 +* (((
45 +Monitor Battery Level
46 +)))
47 +* (((
48 +Uplink on periodically
49 +)))
50 +* (((
51 +Downlink to change configure
52 +)))
53 +* (((
54 +IP66 Waterproof Enclosure
55 +)))
56 +* (((
57 +IP67 rate for the Sensor Probe
58 +)))
59 +* (((
60 +Ultra-Low Power consumption
61 +)))
62 +* (((
63 +AT Commands to change parameters
64 +)))
65 +* (((
66 +Micro SIM card slot for NB-IoT SIM
67 +)))
68 +* (((
69 +8500mAh Battery for long term use
70 +)))
56 56  
57 57  == 1.3  Specification ==
58 58  
74 +**Common DC Characteristics:**
59 59  
60 -(% style="color:#037691" %)**Common DC Characteristics:**
61 -
62 62  * Supply Voltage: 2.1v ~~ 3.6v
63 63  * Operating Temperature: -40 ~~ 85°C
64 64  
65 -(% style="color:#037691" %)**NB-IoT Spec:**
79 +**NB-IoT Spec:**
66 66  
67 67  * - B1 @H-FDD: 2100MHz
68 68  * - B3 @H-FDD: 1800MHz
... ... @@ -71,10 +71,10 @@
71 71  * - B20 @H-FDD: 800MHz
72 72  * - B28 @H-FDD: 700MHz
73 73  
74 -== 1.4  Probe Specification ==
88 +== 1.4 Probe Specification ==
75 75  
76 76  
77 -(% style="color:#037691" %)**Leaf Moisture: percentage of water drop over total leaf surface**
91 +**Leaf Moisture: percentage of water drop over total leaf surface**
78 78  
79 79  * Range 0-100%
80 80  * Resolution: 0.1%
... ... @@ -82,7 +82,7 @@
82 82  * IP67 Protection
83 83  * Length: 3.5 meters
84 84  
85 -(% style="color:#037691" %)**Leaf Temperature:**
99 +**Leaf Temperature:**
86 86  
87 87  * Range -50℃～80℃
88 88  * Resolution: 0.1℃
... ... @@ -90,40 +90,30 @@
90 90  * IP67 Protection
91 91  * Length: 3.5 meters
92 92  
93 -== 1.5 ​ Applications ==
107 +== 1.5 ​Applications ==
94 94  
95 -
96 96  * Smart Agriculture
97 97  
98 -== 1.6  Pin mapping and power on ==
111 +== 1.6 Pin mapping and power on ==
99 99  
100 -
101 101  ​[[image:image-20220907171221-4.png]]
102 102  
103 103  **~ **
104 104  
105 -
106 106  = 2.  Use NLMS01 to communicate with IoT Server =
107 107  
108 -
109 109  == 2.1  How it works ==
110 110  
111 -
112 112  The NLMS01 is equipped with a NB-IoT module, the pre-loaded firmware in NLMS01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NLMS01.
113 113  
114 114  The diagram below shows the working flow in default firmware of NLMS01:
115 115  
116 -
117 117  [[image:image-20220907171221-5.png]]
118 118  
119 -
120 -
121 121  == 2.2 ​ Configure the NLMS01 ==
122 122  
123 -
124 124  === 2.2.1 Test Requirement ===
125 125  
126 -
127 127  To use NLMS01 in your city, make sure meet below requirements:
128 128  
129 129  * Your local operator has already distributed a NB-IoT Network there.
... ... @@ -130,120 +130,90 @@
130 130  * The local NB-IoT network used the band that NLMS01 supports.
131 131  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
132 132  
133 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NLMS01 will use(% style="color:#037691" %)** CoAP(120.24.4.116:5683) **(%%)or raw(% style="color:#037691" %)** UDP(120.24.4.116:5601)** or(%%) (% style="color:#037691" %)**MQTT(120.24.4.116:1883)**(%%)or (% style="color:#037691" %)**TCP(120.24.4.116:5600)**(%%)protocol to send data to the test server
137 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NLMS01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server
134 134  
135 -
136 136  [[image:image-20220907171221-6.png]] ​
137 137  
138 -
139 -
140 140  === 2.2.2 Insert SIM card ===
141 141  
142 -
143 143  Insert the NB-IoT Card get from your provider.
144 144  
145 145  User need to take out the NB-IoT module and insert the SIM card like below:
146 146  
147 -
148 148  [[image:image-20220907171221-7.png]] ​
149 149  
150 -
151 -
152 152  === 2.2.3 Connect USB – TTL to NLMS01 to configure it ===
153 153  
151 +User need to configure NLMS01 via serial port to set the **Server Address** / **Uplink Topic** to define where and how-to uplink packets. NLMS01 support AT Commands, user can use a USB to TTL adapter to connect to NLMS01 and use AT Commands to configure it, as below.
154 154  
155 -User need to configure NLMS01 via serial port to set the (% style="color:#037691" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NLMS01 support AT Commands, user can use a USB to TTL adapter to connect to NLMS01 and use AT Commands to configure it, as below.
153 +**Connection:**
156 156  
155 + USB TTL GND <~-~-~-~-> GND
157 157  
158 -(% style="color:blue" %)**Connection:**
157 + USB TTL TXD <~-~-~-~-> UART_RXD
159 159  
160 -**~ (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND(%%)**
159 + USB TTL RXD <~-~-~-~-> UART_TXD
161 161  
162 -**~ (% style="background-color:yellow" %)USB TTL TXD  <~-~-~-~-> UART_RXD(%%)**
163 -
164 -**~ (% style="background-color:yellow" %)USB TTL RXD  <~-~-~-~-> UART_TXD(%%)**
165 -
166 -
167 167  In the PC, use below serial tool settings:
168 168  
169 -* Baud:  (% style="color:green" %)**9600**
170 -* Data bits:**  (% style="color:green" %)8(%%)**
171 -* Stop bits:  (% style="color:green" %)**1**
172 -* Parity:  (% style="color:green" %)**None**
173 -* Flow Control: (% style="color:green" %)**None**
163 +* Baud:  **9600**
164 +* Data bits:** 8**
165 +* Stop bits: **1**
166 +* Parity:  **None**
167 +* Flow Control: **None**
174 174  
175 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on NLMS01. NLMS01 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
169 +Make sure the switch is in FLASH position, then power on device by connecting the jumper on NLMS01. NLMS01 will output system info once power on as below, we can enter the **password: 12345678** to access AT Command input.
176 176  
177 -​[[image:image-20220913090720-1.png]]
171 +​[[image:image-20220907171221-8.png]]
178 178  
173 +**Note: the valid AT Commands can be found at:  **[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
179 179  
180 -(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
181 -
182 -
183 -
184 184  === 2.2.4 Use CoAP protocol to uplink data ===
185 185  
177 +**Note: if you don't have CoAP server, you can refer this link to set up one: **[[**http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
186 186  
187 -(% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)[[**http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
179 +**Use below commands:**
188 188  
181 +* **AT+PRO=1**   ~/~/ Set to use CoAP protocol to uplink
182 +* **AT+SERVADDR=120.24.4.116,5683   ** ~/~/ to set CoAP server address and port
183 +* **AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** ~/~/Set COAP resource path
189 189  
190 -(% style="color:blue" %)**Use below commands:**
191 -
192 -* (% style="color:#037691" %)**AT+PRO=1**          (%%) ~/~/  Set to use CoAP protocol to uplink
193 -* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%) ~/~/  to set CoAP server address and port
194 -* (% style="color:#037691" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
195 -
196 -
197 -
198 198  For parameter description, please refer to AT command set
199 199  
200 200  [[image:image-20220907171221-9.png]]
201 201  
189 +After configure the server address and **reset the device** (via AT+ATZ ), NLMS01 will start to uplink sensor values to CoAP server.
202 202  
203 -After configure the server address and (% style="color:#037691" %)**reset the device**(%%) (via AT+ATZ ), NLMS01 will start to uplink sensor values to CoAP server.
204 -
205 205  [[image:image-20220907171221-10.png]] ​
206 206  
207 -
208 -
209 209  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
210 210  
211 -
212 212  This feature is supported since firmware version v1.0.1
213 213  
214 -* (% style="color:#037691" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
215 -* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601  ** (%%) ~/~/  to set UDP server address and port
216 -* (% style="color:#037691" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
197 +* **AT+PRO=2   ** ~/~/ Set to use UDP protocol to uplink
198 +* **AT+SERVADDR=120.24.4.116,5601   ** ~/~/ to set UDP server address and port
199 +* **AT+CFM=1       ** ~/~/If the server does not respond, this command is unnecessary
217 217  
218 -
219 -
220 220  ​ [[image:image-20220907171221-11.png]]
221 221  
222 -
223 223  [[image:image-20220907171221-12.png]]
224 224  
225 225  ​
226 226  
227 -
228 228  === 2.2.6 Use MQTT protocol to uplink data ===
229 229  
230 -
231 231  This feature is supported since firmware version v110
232 232  
233 -* (% style="color:#037691" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
234 -* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
235 -* (% style="color:#037691" %)**AT+CLIENT=CLIENT       ** (%%) ~/~/  Set up the CLIENT of MQTT
236 -* (% style="color:#037691" %)**AT+UNAME=UNAME                        **(%%)** **~/~/  Set the username of MQTT
237 -* (% style="color:#037691" %)**AT+PWD=PWD                            **(%%)** **~/~/  Set the password of MQTT
238 -* (% style="color:#037691" %)**AT+PUBTOPIC=PUB                    ** (%%) ~/~/  Set the sending topic of MQTT
239 -* (% style="color:#037691" %)**AT+SUBTOPIC=SUB          ** (%%) ~/~/  Set the subscription topic of MQTT
211 +* **AT+PRO=3   ** ~/~/Set to use MQTT protocol to uplink
212 +* **AT+SERVADDR=120.24.4.116,1883   ** ~/~/Set MQTT server address and port
213 +* **AT+CLIENT=CLIENT       ** ~/~/Set up the CLIENT of MQTT
214 +* **AT+UNAME=UNAME                               **~/~/Set the username of MQTT
215 +* **AT+PWD=PWD                                        **~/~/Set the password of MQTT
216 +* **AT+PUBTOPIC=PUB                    **~/~/Set the sending topic of MQTT
217 +* **AT+SUBTOPIC=SUB          ** ~/~/Set the subscription topic of MQTT
240 240  
241 -
242 -
243 243  ​ [[image:image-20220907171221-13.png]]
244 244  
245 -
246 -
247 247  [[image:image-20220907171221-14.png]]
248 248  
249 249  ​
... ... @@ -250,59 +250,41 @@
250 250  
251 251  MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
252 252  
253 -
254 -
255 255  === 2.2.7 Use TCP protocol to uplink data ===
256 256  
257 -
258 258  This feature is supported since firmware version v110
259 259  
260 -* (% style="color:#037691" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
261 -* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5600   ** (%%) ~/~/  to set TCP server address and port
231 +* **AT+PRO=4   ** ~/~/ Set to use TCP protocol to uplink
232 +* **AT+SERVADDR=120.24.4.116,5600   ** ~/~/ to set TCP server address and port
262 262  
263 -
264 -
265 265  ​ [[image:image-20220907171221-15.png]]
266 266  
267 -
268 -
269 269  [[image:image-20220907171221-16.png]]
270 270  
271 271  ​
272 272  
273 -
274 274  === 2.2.8 Change Update Interval ===
275 275  
276 -
277 277  User can use below command to change the **uplink interval**.
278 278  
279 -* (% style="color:#037691" %)**AT+TDC=7200      ** (%%) ~/~/ Set Update Interval to 7200s (2 hour)
244 +* **AT+TDC=7200      ** ~/~/ Set Update Interval to 7200s (2 hour)
280 280  
246 +**NOTE: By default, the device will send an uplink message every 2 hour. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
281 281  
282 282  
283 -(% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hour. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
284 -
285 -
286 -
287 287  == 2.3  Uplink Payload ==
288 288  
289 -
290 290  In this mode, uplink payload includes 87 bytes in total by default.
291 291  
292 292  Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
293 293  
255 +|**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4
256 +|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Leaf moisture|Leaf Temperature|Time stamp|Leaf Temperature|Leaf moisture|Time stamp  .....
294 294  
295 -(% border="1" style="background-color:#ffffcc; color:green; width:1251px" %)
296 -|(% style="width:96px" %)**Size(bytes)**|(% style="width:82px" %)**8**|(% style="width:42px" %)**2**|(% style="width:48px" %)**2**|(% style="width:124px" %)1|(% style="width:58px" %)1|(% style="width:82px" %)1|(% style="width:113px" %)2|(% style="width:134px" %)2|(% style="width:100px" %)4|(% style="width:137px" %)2|(% style="width:110px" %)2|(% style="width:122px" %)4
297 -|(% style="width:96px" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:42px" %)Ver|(% style="width:48px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:58px" %)MOD|(% style="width:82px" %)Interrupt|(% style="width:113px" %)Leaf moisture|(% style="width:134px" %)Leaf Temperature|(% style="width:100px" %)Time stamp|(% style="width:137px" %)Leaf Temperature|(% style="width:110px" %)Leaf moisture|(% style="width:122px" %)Time stamp  .....
298 -
299 -
300 300  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
301 301  
302 -
303 303  [[image:image-20220907171221-17.png]]
304 304  
305 -
306 306  The payload is ASCII string, representative same HEX:
307 307  
308 308  0x(% style="color:red" %)f868411056754138(% style="color:blue" %)0064(% style="color:green" %)0c78(% style="color:red" %)17(% style="color:blue" %)01(% style="color:green" %)00(% style="color:blue" %)**0225010b6315537b**010b0226631550fb**010e022663154d77**01110225631549f1**011502246315466b**01190223631542e5**011d022163153f62**011e022163153bde**011e022163153859**(%%)** **where:
... ... @@ -319,10 +319,6 @@
319 319  * Leaf Temperature, Leaf moisture,Time stamp : 010b0226631550fb
320 320  * (% style="color:blue" %)8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
321 321  
322 -
323 -
324 -
325 -
326 326  == 2.4  Payload Explanation and Sensor Interface ==
327 327  
328 328  === 2.4.1  Device ID ===
image-20220913090720-1.png
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